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Control of Diesel Exhaust Emissions in Underground Coal.

The report describes an experimental survey of diesel emission after-treatment control techniques, including water scrubbers, catalytic converters, exhaust gas recirculation, and soot filters. The use of two or more techniques in combination was tested for optimum control of all exhaust pollutants, and dynamometer data was developed for steady-state and computer-controlled simulated mines duty cycles operation of Deutz F6L-714 and F8L-413 engines. Exhaust quality indices were calculated from dynamometer data for comparisons among the control combinations examined.